Shuffle 2 of your «Blackwing» monsters (1 Tuner and 1 non-Tuner) that are banished and/or in your GY into the Deck/Extra Deck; Special Summon 1 «Blackwing» Synchro Monster or «Black-Winged Dragon» from your Extra Deck whose Level equals the total Levels of those 2 monsters. (This is treated as a Synchro Summon.) If you control 2 or more «Blackwing» monsters, you can activate this card from your hand. You can only activate 1 «Blackwing – Twin Shadow» per turn.